Used in molecular biology for DNA and RNA separation through gel electrophoresis. Pre-cast agarose gels are ready-to-use, saving time and reducing handling errors. Ideal for routine analysis of nucleic acid samples, they provide consistent gel concentration and uniform thickness, ensuring reproducible results. Commonly used in PCR product analysis, restriction enzyme digestion checks, and size determination of DNA fragments. Compatible with standard electrophoresis chambers and staining techniques like ethidium bromide or safer alternatives. Also suitable for educational labs due to ease of use and reliability.